Finding the Fourth Proportional to 784,724.13, 1,177,143.26 and 328,857.77
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Solution
The fourth proportional to 784,724.13, 1,177,143.26 and 328,857.77 is: 493,310.56
Step by Step Solution
- Step 1: Write the proportion equation
784,724.13 : 1,177,143.26 = 328,857.77 : x - Step 2: Convert to fraction form
784,724.13/1,177,143.26 = 328,857.77/x - Step 3: Cross multiply
784,724.13x = 1,177,143.26 × 328,857.77 - Step 4: Simplify right side
784,724.13x = 387,112,699,924.13 - Step 5: Solve for x
x = 387,112,699,924.13/784,724.13 - Step 6: Final answer
x = 493,310.56
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.